Implements attachments display in transcript

src/transcript/layouts/image-bubble-layout.vala

@@ -7,8 +7,6 @@ private class ImageBubbleLayout : BubbleLayout
 
     private Graphene.Size image_size;
     private Gdk.Texture? cached_texture = null;
-    private const float max_image_width = 300.0f;
-    private const float max_image_height = 400.0f;
 
     public ImageBubbleLayout(string image_path, bool from_me, Widget parent, float max_width, Graphene.Size? image_size = null) {
         base(parent, max_width);
@@ -29,18 +27,13 @@ private class ImageBubbleLayout : BubbleLayout
 
         // Try to load the image to get its dimensions
         try {
+            warning("No image size provided, loading image to get dimensions");
+            
             var texture = Gdk.Texture.from_filename(image_path);
             var original_width = (float)texture.get_width();
             var original_height = (float)texture.get_height();
             
-            // Calculate scaled dimensions while maintaining aspect ratio
-            var scale_factor = float.min(
-                max_image_width / original_width,
-                max_image_height / original_height
-            );
-            scale_factor = float.min(scale_factor, 1.0f); // Don't scale up
-            
-            this.image_size = Graphene.Size() { width = original_width * scale_factor, height = original_height * scale_factor };
+            this.image_size = Graphene.Size() { width = original_width, height = original_height };
         } catch (Error e) {
             // Fallback dimensions if image can't be loaded
             warning("Failed to load image %s: %s", image_path, e.message);
@@ -65,12 +58,8 @@ private class ImageBubbleLayout : BubbleLayout
     }
 
     public override float get_height() {
-        float aspect_ratio = image_size.width / image_size.height;
-        if (image_size.width > max_width) {
-            return max_width / aspect_ratio;
-        }
-
-        return image_size.height;
+        var scale_factor = float.min(max_width / image_size.width, 1.0f);
+        return image_size.height * scale_factor;
     }
 
     public override float get_width() {

src/transcript/transcript-drawing-area.vala

@@ -108,6 +108,30 @@ private class TranscriptDrawingArea : Widget
             text_bubble.vertical_padding = (last_sender == message.sender) ? 0.0f : 10.0f;
             items.add(text_bubble);
 
+            // Check for attachments. For each one, add an image layout bubble
+            foreach (var attachment in message.attachments) {
+                if (attachment.metadata != null) {
+                    var image_size = Graphene.Size() {
+                        width = attachment.metadata.attribution_info.width,
+                        height = attachment.metadata.attribution_info.height
+                    }; 
+
+                    var image_layout = new ImageBubbleLayout(attachment.preview_path, message.from_me, this, max_width, image_size);
+                    image_layout.is_downloaded = attachment.preview_downloaded;
+                    items.add(image_layout);
+
+                    // If the attachment isn't downloaded, queue a download since we are going to be showing it here. 
+                    // TODO: Probably would be better if we only did this for stuff in the viewport. 
+                    if (!attachment.preview_downloaded) {
+                        try {
+                            Repository.get_instance().download_attachment(attachment.guid, true);
+                        } catch (GLib.Error e) {
+                            warning("Wasn't able to message daemon about queuing attachment download: %s", e.message);
+                        }
+                    }
+                }
+            }
+
             last_sender = message.sender;
             last_date = date;
 

src/transcript/transcript-view.vala

@@ -44,6 +44,7 @@ public class TranscriptView : Adw.Bin
     private TranscriptDrawingArea transcript_drawing_area = new TranscriptDrawingArea();
     private ScrolledWindow scrolled_window = new ScrolledWindow();
     private ulong messages_changed_handler_id = 0;
+    private bool needs_reload = false;
 
     public TranscriptView() {
         container = new Adw.ToolbarView();
@@ -56,6 +57,36 @@ public class TranscriptView : Adw.Bin
         var header_bar = new Adw.HeaderBar();
         header_bar.set_title_widget(title_label);
         container.add_top_bar(header_bar);
+
+        Repository.get_instance().attachment_downloaded.connect((attachment_guid) => {
+            debug("Attachment downloaded: %s", attachment_guid);
+
+            // See if this attachment is part of this transcript. 
+            bool contains_attachment = false;
+            foreach (var message in _model.messages) {
+                foreach (var attachment in message.attachments) {
+                    if (attachment.guid == attachment_guid) {
+                        contains_attachment = true;
+                        break;
+                    }
+                }
+            }
+
+            if (contains_attachment && !needs_reload) {
+                debug("Queueing reload of messages for attachment download");
+
+                needs_reload = true;
+                GLib.Idle.add(() => {
+                    if (needs_reload) {
+                        debug("Reloading messages for attachment download");
+                        model.load_messages();
+                        needs_reload = false;
+                    }
+
+                    return false;
+                }, GLib.Priority.HIGH);
+            }
+        });
     }
 
     private void reload_messages() {